![microcontroller - Driving a LED with an open drain digital output - Electrical Engineering Stack Exchange microcontroller - Driving a LED with an open drain digital output - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/g0coZ.png)
microcontroller - Driving a LED with an open drain digital output - Electrical Engineering Stack Exchange
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Open drain output with zener diode protection to drive led, voltage divider before led? : r/AskElectronics
![Discover the functions of open drain and open collector circuits - Logic - Electronic Component and Engineering Solution Forum - TechForum │ Digi-Key Discover the functions of open drain and open collector circuits - Logic - Electronic Component and Engineering Solution Forum - TechForum │ Digi-Key](https://global.discourse-cdn.com/digikey/original/3X/2/d/2df247099e689fe7708f59bcaf2be032a2dd4f55.png)
Discover the functions of open drain and open collector circuits - Logic - Electronic Component and Engineering Solution Forum - TechForum │ Digi-Key
![Open Drain outputs don't work (also breaks bitbangio.I2C) · Issue #3845 · adafruit/circuitpython · GitHub Open Drain outputs don't work (also breaks bitbangio.I2C) · Issue #3845 · adafruit/circuitpython · GitHub](https://user-images.githubusercontent.com/1517291/103016498-bfce7b80-4507-11eb-8d58-0c92d2ec073c.png)
Open Drain outputs don't work (also breaks bitbangio.I2C) · Issue #3845 · adafruit/circuitpython · GitHub
![microcontroller - Driving a LED with an open drain digital output - Electrical Engineering Stack Exchange microcontroller - Driving a LED with an open drain digital output - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/sZNaz.png)
microcontroller - Driving a LED with an open drain digital output - Electrical Engineering Stack Exchange
![stm32 - How can I read the value of an open drain pin connected to an LED - Electrical Engineering Stack Exchange stm32 - How can I read the value of an open drain pin connected to an LED - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/9TTQ5.png)